stkutil: Add parser for broadcast network info

2 files changed, 44 insertions, 0 deletions

diff --git a/src/stkutil.c b/src/stkutil.c
index 75b00350..a457e36e 100644
--- a/src/stkutil.c
+++ b/src/stkutil.c
@@ -1803,6 +1803,29 @@ static gboolean parse_dataobj_activate_descriptor(
 	return TRUE;
 }
 
+/* Defined in TS 102.223 Section 8.90 */
+static gboolean parse_dataobj_broadcast_network_info(
+		struct comprehension_tlv_iter *iter, void *user)
+{
+	struct stk_broadcast_network_information *bni = user;
+	const unsigned char *data;
+	unsigned int len = comprehension_tlv_iter_get_length(iter);
+
+	if (len < 2)
+		return FALSE;
+
+	data = comprehension_tlv_iter_get_data(iter);
+
+	if (data[0] > 0x03)
+		return FALSE;
+
+	bni->tech = data[0];
+	bni->len = len - 1;
+	memcpy(bni->loc_info, data + 1, bni->len);
+
+	return TRUE;
+}
+
 static dataobj_handler handler_for_type(enum stk_data_object_type type)
 {
 	switch (type) {
@@ -1970,6 +1993,8 @@ static dataobj_handler handler_for_type(enum stk_data_object_type type)
 		return parse_dataobj_registry_application_data;
 	case STK_DATA_OBJECT_TYPE_ACTIVATE_DESCRIPTOR:
 		return parse_dataobj_activate_descriptor;
+	case STK_DATA_OBJECT_TYPE_BROADCAST_NETWORK_INFO:
+		return parse_dataobj_broadcast_network_info;
 	default:
 		return NULL;
 	};
diff --git a/src/stkutil.h b/src/stkutil.h
index b7341c78..5d2a818f 100644
--- a/src/stkutil.h
+++ b/src/stkutil.h
@@ -370,6 +370,13 @@ enum stk_frame_layout_type {
 	STK_LAYOUT_VERTICAL = 		0x02
 };
 
+enum stk_broadcast_network_technology {
+	STK_BROADCAST_NETWORK_DVB_H = 0x00,
+	STK_BROADCAST_NETWORK_DVB_T = 0x01,
+	STK_BROADCAST_NETWORK_DVB_SH = 0x02,
+	STK_BROADCAST_NETWORK_T_DMB = 0x03
+};
+
 /* For data object that only has a byte array with undetermined length */
 struct stk_common_byte_array {
 	unsigned char *array;
@@ -764,6 +771,18 @@ struct stk_registry_application_data {
 	char *name;
 };
 
+/*
+ * According to 102.223 Section 8.90 the length of CTLV is 1 byte. This means
+ * that the maximum length is 127 bytes for the total length of broadcast
+ * network technology and location information. Thus the maximum length of
+ * location information is 126 bytes.
+ */
+struct stk_broadcast_network_information {
+	unsigned char tech;
+	unsigned char loc_info[126];
+	unsigned int len;
+};
+
 struct stk_command_display_text {
 	char *text;
 	struct stk_icon_id icon_id;